Will these work on a semi-horizontal drop out? Or a front load horizontal dropout?

So far as I could tell, they didn't work in ANY dropouts. The walls are too narrow to fit over aluminum dropouts - the threads are too short to fit most dropouts - when you COULD get the darned things on, the curve on the back of the dropout wanted to slant the back "cups" so that the axle wouldn't pull in the direction you wanted. In short, this seemed like a good idea but in practice just didn't work. Save your money.

do they have this for 18mm axles ?

If you have an aluminum frame (e-bike or not), then the slots in the frame pieces are too narrow to fit over your frame. If you have a steel frame with slotted axle dropouts, the frame pieces will fit - BUT if the "back" of the dropout is curved, these will not stay in the correct position, but will travel along the curve, losing their ability to tension the axle properly. Also, if your slotted axle dropout is very long, the threads are NOT long enough to reach the backs of the dropouts - so the tensioners are useless anyway. These tensioners have such a multitude of design flaws that they are highly unlikely to do what they are intended to do. Don't waste your money.

Ok kinda a dumb question but my bolt is 5/8 but the axle is about 3/8. It will still work right?

This chain tensioner is designed for a 3/8 axle..here is the info from the manufacturer website:Product DetailsFits 3/8 AxlesLightweight, compact designForged alloy constructionChromoly boltChain Tension AdjusterVariationsSku: 16216 3/8" SilverSku: 16220 3/8" Blackhttp://www.origin8.bike/product-description/?prod_model_uid=694

will it fit a worksman cycle?

Works on any track/fixed gear bike frame.

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🚴‍♂️ Elevate Your Ride with Precision!

PRECISION FIT - Engineered for 3/8” axles, ensuring a snug and secure fit for your bike.
COMPACT DESIGN - Measuring only 4.85 x 4.05 x 1 inches, it’s easy to store and transport.
ULTRA LIGHTWEIGHT - Weighing in at just 0.05 pounds, it won’t weigh you down on your rides.
DURABLE CONSTRUCTION - Crafted from forged alloy, this adjuster is built to withstand the rigors of cycling.
PERFECT FOR MAINTENANCE - Ideal for bicycle maintenance and repair, keeping your ride in top shape.

The Origin8 Chain Tension Adjuster is a lightweight and compact tool designed for 3/8” axles, made from durable forged alloy and featuring a robust chromoly bolt. Perfect for cycling enthusiasts looking to maintain and repair their bikes with ease.

Specifications

Brand	Origin8
Item Pitch	0.38 Inches
Material	Alloy Steel
Strand Type	Single
Recommended Uses For Product	bicycle maintenance or repair
Specification Met	3/8" Axles Compatibility, Forged Alloy Material, Chromoly Bolt Material
Item Length	0.38 Inches
UPC	072774162161
Item Package Dimensions L x W x H	5 x 4 x 1 inches
Package Weight	0.05 Kilograms
Item Dimensions LxWxH	4.85 x 4.05 x 1 inches
Item Weight	0.05 Pounds
Brand Name	Origin8
Color	Silver
Suggested Users	Cycling
Number of Items	1
Manufacturer	Origin8
Part Number	16216
Style	Does Not Apply

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

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Good experience, but the tracking updates could be better.

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Origin8Chain Tension Adjuster

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